Quarter	Index 2010=100
1998-01-01	87.63
1998-04-01	80.72
1998-07-01	70.26
1998-10-01	64.28
1999-01-01	67.70
1999-04-01	75.53
1999-07-01	81.48
1999-10-01	85.77
2000-01-01	87.81
2000-04-01	89.24
2000-07-01	86.01
2000-10-01	83.24
2001-01-01	79.52
2001-04-01	78.92
2001-07-01	76.55
2001-10-01	73.65
2002-01-01	72.91
2002-04-01	72.14
2002-07-01	72.49
2002-10-01	72.22
2003-01-01	71.37
2003-04-01	71.07
2003-07-01	70.49
2003-10-01	70.27
2004-01-01	69.38
2004-04-01	69.15
2004-07-01	69.17
2004-10-01	69.72
2005-01-01	70.58
2005-04-01	70.74
2005-07-01	71.08
2005-10-01	71.68
2006-01-01	72.95
2006-04-01	74.17
2006-07-01	75.90
2006-10-01	78.51
2007-01-01	83.09
2007-04-01	88.70
2007-07-01	93.95
2007-10-01	98.77
2008-01-01	101.15
2008-04-01	99.11
2008-07-01	95.47
2008-10-01	89.02
2009-01-01	77.24
2009-04-01	74.29
2009-07-01	85.26
2009-10-01	91.22
2010-01-01	95.75
2010-04-01	99.63
2010-07-01	101.33
2010-10-01	103.16
2011-01-01	103.55
2011-04-01	104.81
2011-07-01	104.16
2011-10-01	103.50
2012-01-01	102.13
2012-04-01	101.50
2012-07-01	101.19
2012-10-01	102.30
2013-01-01	101.67
2013-04-01	104.00
2013-07-01	103.24
2013-10-01	101.41
2014-01-01	99.95
2014-04-01	98.96
2014-07-01	98.24
2014-10-01	97.34
2015-01-01	96.43
2015-04-01	95.73
2015-07-01	94.67
2015-10-01	94.45
2016-01-01	93.97
2016-04-01	93.80
2016-07-01	92.10
2016-10-01	91.49
2017-01-01	90.80
2017-04-01	90.82
2017-07-01	91.49
2017-10-01	92.07
2018-01-01	95.48
2018-04-01	98.74